15*(x-4)=3,(278-x)*6=38.
问题描述:
15*(x-4)=3,(278-x)*6=38.
答
x-4=15/3x=4+5x=9278-x=38/6=19/3x=278-19/3x=271+2/3
15*(x-4)=3,(278-x)*6=38.
x-4=15/3x=4+5x=9278-x=38/6=19/3x=278-19/3x=271+2/3